Truck



May 23, 1933. w. c. HEDGcocK TRUCK Filed July 21, 1931 2 Sheets-Sheet l ki) N m www Immer-i159".- C Uz'llz'am AMaLy 23, 1933. w. c. HEDGcocK TRUCK Filed July 21, r1931 2 sheets-sheet L?? Ul'ZZz'am C. ldjzcock "-fUNITsDLsTAi-ES Winsum c.

Patented May 23, 1933 nnecocx,` "or wILMETTnILLINoIs; Assienon "ro AMERICAN srnnn y i l, rouivnnins`,jor iiircni;io rnLiNoIs, A ooRPoRnTIoNoF NEW JERSEY, l

` TRUCK Application vlcdvJ'ulyZl, 1931. Serial No,y 552,158.

Thisinvention pertains to railway car yii-"ifcertain type of truck is provided with side iframes ofthe pedestal type inlwhich the journal` boxes are guided between] pedestal jaws, there being springs carried on the top l of eachjournal box for supporting the truck `side frame, said springs being positioned betweenassociated" `pedestal jaws and `within n a recessin the side iframe; Such a methodof` positioning and enclosing a spring isundesirably restrictive upon thesize, proportions, and capacities of thesp'rings soeplaced,so that i in" many, cases itis" impracticah toobtain the desirable spring n capacity and" deflection, in high capacity ear truckswithin` the usual d clearance conditions.

QAn object of this invention, therefore, is :to

` provide a car truclconstruction wherein increased spring capacity is provided, in comf;

i i bination with the pedestalltypeof side frame. `Another object of the invention is to pro-` vvide a construction wherein there is ldirect connection between .i theffside frames 1 and bolster, butwherein the engagingisurfaces are arranged for true rocking action to per-` mit amore constant loady application.` Q ,1 .y let "anotherl object of: ,the i invention .is to n i provide-aconstruetion havinga bolster alr-` 1301 ranged for rockingaction,transverselyo the truckin such amanner as to prevent ,excessive side roll of the car.

"AJfurther object of thelinvention is to provl i vide a car truck `construetion wherein an ini` creased spring; capacity is` provided incombination with the .bolster adapted `to rock in apluralityoidirections.` e f i d Q etfurther ,object "of the inventionis to provide cartruck construction wherein ian inbinationdwith thelpedelstal type ofside frame,

`andwherein` awtwopa'rt bolster is provided as `will bejmorefully described and particu-iv pointed out i i111 the specification, drawu larly ings, and claims appendedlhereto. Y i u @n e lnthe drawings, which illustratearnein` creased springcapacity is provided, in confi-` In the type of truck construction illustrate ed, the sidelframes 1() are preferably `of truss construction, having spaced tension and come` bodiment of the deviceand whereinlike reifpression members 12 and ltlconverging andA being integrally vfforrned adjacent eachend 116 and "being `provided with Va central` bolster opening 18 defined by the spaced columns20` i connecting the tension and compression i members, the openingformed being` provided with a bolster seat `22, saidseat being integrally formed on the upper face ofthe tension member between the columns. The end 1portions 16 are provided withspacedpedestals 24 and 26 for guiding an associated `journal box 28` therebetween.1 Each journal box 28 is `adapted to cooperate with the journal end 30 of the wheel andiaxle assembly 32, which maybe ofA any construction, such as the stand-` ardA.R.A. type, the journal box conforming `to any d desired construction. `Each journal box provided with springseatsfi and 36 extending laterally; `from each side "thereof u upon which are mountedspring nests 38, said springscarrying the side frame 10upon seats 40` `and 42 disposed on said side frame, the springs being partly iembraced bythe `pedes-` tal jaw structure including theface 44 and thei'langeslf` t i M y i The springs maybe of any desiredconstruction, such as described in application serial No. 552,153, filed `July 2i; i931;v `It will `thus be seen thatby placing the springs on seats on each side of the journal box, s ace i is provided for two springs of substantially the saine diameterand capacity as can belob-` tainedifroma single set on" top of the` box. Furthermore, adequate space" is provided for` springs of relatively greater `height and deflection. i 1` 1 M t 1` 1 The bolsterassembly 48 is ofthe two-part rocker ltype construction and` includesathe lower bolster member 50 extending between the side frames and into the opening defined by the guides 52 of the columns 20. The lower bolsteris provided with flanges or lugs 54 and 56 adapted to embrace the guide members 52 whereby the bolster spaces and ties together the side frames, at the same time being permitted rocking movement longitudinally of thetruck by virtue of the arcuate surface 58 provided o'nthat part of the bolster disposed to contact the member 22. Although the arcuate surface is shown on the bolster at 58 and the fiat cooperating surface is shown at 22 on the side frame, it will be member 'is provided4 with the side bearing 66 and the flanges 68 vembracing the lower bolster member and 'serving to. position the upper bolster -member thereon, the upper bolster member being provided with the arcuate rocking surface 70 having rockingcooperation rwith the upper flat surface 72 of the lower bolster member, but it will be Linderstood that the surface 72 may be concaved but of a greater radiusthan the convex surface 70. The center of Athe radius of the curved surface of the upper bolster member 60 lies above the center of gravity of the car body. Thusany tendency toward side rolll of the car body causes the upper-bolster' member to roll on the lower' and must resultV in lifting' the center of gravity. VThis is resistedbyk the inertia ofthe car bodyv weight and serves to stabilize thecar bodyagainst eXcessiveside roll. Brak-e hangerbraclets 74 are provided on each side of the bolster for accommodation of thevp'roper brake rigging. j

With a truck of the construction shown rocking. of the bolster is permitted longitudinally and transversely of the truck due to the plurality o f parts thereof. lAt the same time, a truck of increased spring capacity is provided. The truck construction prevents eccentric loading of the parts, and easyriding qualities 0f the car are insured.

It is to be understood that I do not wish to be limitedby the exact embodiment of the device shown which is merely by way of illustration and not limitation, as various and otherpforms of the device will of course be apparent to those skilled in the art without departing from the spirit of the invention or the scope of the claims.

I claim:

l. In a four-wheel ear truck, the combination with a side frame having pedestals and e a bolster seat, of a journal box mounted be tween said pedestals for vertical motion therein, springs carried upon opposite sides of said `journal box for supporting said side frame, and a bolster assembly seated upon said bolster seat for flexible connection with said side frame, a portion of said bolster assembly being movable in a plurality of directions.

l 2. In a four-wheel car truck, the combination with a side frame having pedestals and a bolster seat, of a journal box mounted between said pedestals for vertical motion therein, springs carried upon opposite sides of said journal bor: and embraced by said pedestals for supporting said side frame, and a bolster assembly seated upon said bolster seat for liexible connection with said side frame, a portion of said bolster assembly being movable in a plurality of directions.

3. In a four-wheel car truck, the combina.- tion with side frames each provided with pedestals and a bolster opening having a bolster seat, of journal boxes mounted between said pedestals and supporting said side frames through springs mounted on opposite sidesA of each journal boX, and abolster assembly spacing said side frames and having its end portions in said bolster openings and resting uponV the bolster seats, a portion of said bolster assembly being movable in a plurality of directions. Y

4. In a four-wheel car truck, the combination with side frames each provided with pedestals and a bolster opening having a holster seat, of journal boxes mounted between said pedestals and supporting .said side frames through springs mounted on opposite sides of each journal boX, and a bolster assembly spacing said sideframes and having its end portions in each bolster opening of less depth than the bolster opening and restingupon said bolster seat, said bolster assembly being provided with flanges adapted to engage an edge of each bolster openingto prevent lateral disengagement of the bolster assembly and side frames,-a portion' of said bolster assembly being movable' in a plurality of directions. f

5, In a four-wheel car truck, the tion with a side frame havingpedestalsand a bolster seat, of a journal box mounted between said pedestals and supporting said side frame through springs mounted on opposite sides of said journal boX, and a bolster assembly resting upon said bolster seat, one of the engaging surfaces of said bolster assembly and bolster seat being arcuately formed to permit rocking of the bolster ascombinasembly with respect to l the side iframe,` said bolster assembly `being formed" toi permit rocking in anotherdireetion.

` v3 1 i 6u In a pedestal four-wheel car truck,

bly on said seats, said bolsterassembly being withaseat, andva spacing member joining; said frames and resting fonfsaid seats, `one formed to permit rocking in another direcf tion. i L i rzxuiwf:

l"'ifln a pedestal four-wheelicar;truck, the combination of l side frames ,eachl provided ot feach `of; thelengagingr surlacessof` said spacingnnembei and seats being arcuately formed: to permit vertical rocking `of the spacing memberuonf said seats, fsaidfspacing' member `being provided with anges `adapted `to engage: said side frames to position said spacing member@` laterally with respect to said side frames, and a bolster cooperating with` said spacingmemberand formed to permit rocking :1n another dlrection thereon:V

r8.1 In a tour-wheel car truck, the combination witlra sideframelhaving-'pedestals and tween said pedestalsf `for@` vertical i motion j therein, `springs carried i upon oppostersides of said journal box for supportlng saidfside frame, and a" i bolster assembly' seated j upon "said bolster seat for flexible connection with!l `said side'framasaid bolster assembly being formed of aplurality oi relativel movable members whereby `a portion of the olster assembly is movable in a plurality of directions with respect to said side frame.

9.` In a four-wheel cartruck, the combinai tion with a side frame having pedestals and a bolster seat, of a journal box mounted between said pedestals for vertical motion thereimsprings carried upon said journal box `for supporting said side frame, and a j bolster assembly seated upon said bolster seat for flexible connection with said side frame, said bolster assembly being formed of a plurality of relatively movable members one of which is movable in a plurality of directions with respect to said side frame.

10. In a lour-wheelcar` truck, the combination with side frames each provided with pedestals andra bolster opening having a bolster seat, of journal boxes mounted between said pedestals and supporting said side frames through springs mounted on opposite sides of `each journal box, and a bolster as sembly spacing said side frames and having its end portions insaid bolster openings and restingupon the bolster seats, said bolster assembly being formed of a plurality of relatively movable members whereby a portion of the bolster assembly is movable in a pluralityfotdirections `witlrsrespect to said side `nation with side frameseach provided with pedestalsand a bolster opening having a i bolster'seat, of journal `boxes mounted between said pedestals and `supporting said side frames through springs mounted on `opposite sides off eachjournal box, and a bolster assembly spacing:` said sideirames` and havi ingiits Aend portions in each bolster opening oflessdepth than the bolster opening and resting upon said `bolster seat, said bolster flanges assembly l being provided with adapted to engagefan edge of eacli bolster j opening to preventzlateral disengagement of `the bolster `assembly andside frames, said bolster-:assembly `being formed of arplurality of relatively movable members Twhereby a portion x:otr the bolster `assembly is movable `in `a pluralityof directions `with respect to* said side frame. j i j j 12. a four-,wheel cartruck, the combination -with fai-side trame having pedestals and a bolster seat,of `a journalbox mounted i between said pedestals for vertical motion therein, springs carried upon said journal box for supporting fsad side frame, anda bolster assembly seated `upon said j bolster seaty for `flexibleconnectionjwith said side 13. 1n artour-wheel car` truck, the combi! i nation with a sideframe having pedestals anda bolster seat, ofa journal box `mounted between said pedestals for vertical motion therein, springs rarried upon said journal box for supportingxsaid sideframe, and a bolster assembly seated" upon said bolster seat for-,flexible connection with said side frame,said. bolster assembly being formed of anyupper and lower member, said upper member having an` arcuate surface engaging said lower lmember for rockingmovement with respect thereto, saidupper member having .portionsfpositioningly embracing said lower member;` v j j j 1 `14. `In a four-wheel car truck,`the combinationfwithla side frame having pedestals andalbolster seat,`of a journal box mounted` between said pedestals for verticalmotion therein, springs carried upon said journal boxl for supporting said side frame, and a bolster i assembly seated upon said bolster `seat for flexible connection with saidfside frame, saidbolster assembly being formed ofV an `upper and `lower `member, said upper saidA `lower member `foryrorking movement with respect thereto, said uppermember having, portions positioningly embracing` said lowerm'ember. i i j i A15.`In a fourewheel car truck,'the combinationl with side frames each provided'with pedestals .and a bolster opening having a bolster seat, of journal boxes mounted between said pedestals and supporting said side frames through springs mounted on opposite sides of each journal box, and a bolster assembly spacing said side frames and having its end portions in said bolster openings and resting upon the bolster seats, said bolster assembly being formed of an upper and lower member, said upper member .having an arcuate surface engaging said lower member for rocking movement with respect thereto, said upper member having portions positioningly embracing said lower member.

16. In a four-wheel car truck, thecombination with side frames each provided with pedestals and a bolster opening having a bolster seat, vof journal boxes mounted between said pedestals and supporting said side frames through springs mounted on each journal box, and a bolster' assembly spacing said side frames and having its end portions in each bolster opening of less depth than, the bolster opening and resting fupon said bolster seat, said bolster assembly being provided with flanges adapted to engage an edge of eachl bolster opening to prevent lateral disengagement ofv the bolster assembly and side frames, said bolster assembly being formed of an upper and lower member, said upper member having an arcuate surface engaging said lower member for rrocking movement with respect thereto, said upper member having portions positioningly embracing said lower member. I

17. In a four-wheel car truck, the combination with a side frame'having pedestals and a bolster seat, of a journal box mounted' between said pedestals for vertical motionV therein, springs carried upon vsaid journal box for supporting said sideframe, and a bolster assembly seated upon said bolster seat for flexible connection with said side frame, said bolster assembly being formed of an upper and lower member, said upper member having an arcuate surface lengaging said lower member for rocking movement with respect thereto, the lower member having an 'arcuate surface rockingly mounted on'` said side frame, whereby the rocking betweenr said bolster members and frame forms said flexible connection. p

18. In a four-wheel car truck, the combination with a side framehaving pedestals and a bolster seat, of a journal box mounted between said pedestals for vertical motion therein, springs carried upon said'journal box for supporting said side frame, and aV bolster assembly seated upon said bolster seat for flexible connection with said side frame, said bolster assembly being formed of an upper and lower member, said upper member having an arcuate surface engaging said lower member for vrocking movement with respect thereto, the lower member having an arcuate surface rockingly mounted onsaid side frame, whereby vthe rocking between said bolster members andframe forms said flexible connection, said upper member having portions positioningly embracing said lower member.- .4

119. In a four-wheel car truck, the combinationwith side frames each provided with pedestals and va bolster opening having a bolster seat, of journal boxesmounted between said pedestals and supporting said side frames through. springs mounted on each journal box, and a bolster assembly spacing said sidev frames andvhaving its end portions in each bolster opening of less depth than the bolster opening and resting upon said bolster seat,.said bolster assembly being provided with flanges adapted to engage an edge of eachy bolster opening to prevent lateral disengagement of the bolster assembly and side frames, said bolster assembly being formed of an upper and lowerfmember, said upper member having an arcuate surface engaging said lower member for rocking movement with respect thereto, the Vlower member having an arcuate surface rockinglymounted on said side frame, whereby the rocking between said bolster members and frameA forms said flexible connection, said upper member having portions positioningly embracing said' lower member.

Signed at Chicago, Illinois, this 24th day of Junel93l. y

' WILLIAM C. HEDGCOCK. 

